CCCBDB calculation results Page

Home
- All data for one species
- Geometry
  - Experimental
  - Calculated
  - Comparisons
  - Bad Calculations
    - Bad moment of inertia
  - Tutorials and Explanations
    - Angle formulas
- Vibrations
  - Experimental
    - Vibrational frequencies
  - Calculated
    - Frequencies
  - Scale factors
- Reactions
- Entropies
- Ions
  - List Ions
  - Energy
    - Calculated Ionization Energy
    - Compare Ionzation energy
  - Electron Affinity
    - Calculated Electron affinity
    - Compare Electron affinity
  - Proton Affinity
    - Calculated Proton affinity
    - Compare Proton affinity
  - Ionization changes point group
Experimental
Calculated
- Energy
  - Optimized
  - Reaction
    - Reaction Energy 0K
    - Reaction Energy 298K
  - Internal Rotation
  - Orbital
  - Nuclear repulsion energy
  - Correlation
    - Full vs Frozen core energies
    - Partial correlation energies
  - Ion
  - Excited State
  - Basis Set Extrapolation
    - BSE energy
    - BSE Bond lengths
- Geometry
  - Calculated geometry
    - AIM bond orders
    - One type of bond
  - Rotation
  - Point group
  - State symmetry
  - <r2>
    - Sorted by r2
  - Z-matrix
  - Bad Calculations
- Vibrations
  - Frequencies
    - Animated vibrations
    - Anharmonic
  - Zero point energy (ZPE)
  - Scale Factors
  - Bad Calculations
- Electrostatics
  - Charges
  - Dipole
  - Quadrupole
  - Polarizability
  - Spin
    - Spin density
- Entropy and Heat Capacity
- Reaction
  - Reaction Energy 0K
  - Reaction Energy 298K
  - Isodesmic reactions
  - Transition State
- Lookup by property
  - By frequency
Comparisons
- Geometry
- Vibrations
- Energy
  - Reaction
  - Single point vs optimized
  - DFT grid size on energy
  - Semiempirical enthalpy
  - Internal rotation
  - Similar molecules
- Entropy
- Electrostatics
- Ion
Resources
- Info on Results
  - Calculations Done
  - Basis functions used
  - I/O files
- Glossary
- Conversion Forms
- Links
  - NIST Links
  - External links
- Thermochemistry
- Tutorials
  - Vibrations
    - Why scale vibrations
    - Zero-point energies
  - Entropy
    - Methyl rotor entropy
    - Entropy and conformations
  - Energy
  - Electrostatics
    - Dipole parts by point group
    - Quadrupoles
  - Geometry
    - Angle formulas
  - Cost
    - Cost Comparison
    - Timings Comparison
- Bad Calculations
  - Geometry
  - Vibrations
  - Low excited states
  - Oddities
    - NaCN Is not linear
FAQ Help
- Units
  - Choose Units
  - Explanations
- Credits
- Just show me
  - Show me a calculated geometry
- Summary
- Using
- List
  - Recent molecules
    - Choose a few
  - Molecules
  - Geometry
  - Vibrations
    - Big anharmonicity
  - Energy
    - Enthalpy at 0 Kelvin
  - Similar molecules
  - Ions, Dipoles, etc.
- Index of CCCBDB
- Feedback
  - Error form
  - Wants

	hartrees
Energy at 0K	-429.558173
Energy at 298.15K
HF Energy	-428.424105
Nuclear repulsion energy	339.830729

Mode Number	Symmetry	Frequency (cm^-1)	Scaled Frequency (cm^-1)	IR Intensities (km mol^-1)	Raman Act (Å⁴/u)	Dep P	Dep U
1	A_g	3295	3100	0.00	284.63	0.14	0.25
2	A_g	1674	1574	0.00	5.57	0.74	0.85
3	A_g	1278	1203	0.00	29.84	0.07	0.12
4	A_g	1180	1110	0.00	7.95	0.54	0.70
5	A_g	867	816	0.00	38.12	0.05	0.10
6	A_g	452	425	0.00	5.85	0.38	0.55
7	A_u	883	831	0.00	0.00	0.00	0.00
8	A_u	402	378	0.00	0.00	0.00	0.00
9	B_1g	787	740	0.00	0.32	0.75	0.86
10	B_1u	3282	3087	2.36	0.00	0.00	0.00
11	B_1u	1559	1466	239.30	0.00	0.00	0.00
12	B_1u	1230	1157	197.53	0.00	0.00	0.00
13	B_1u	1035	974	6.92	0.00	0.00	0.00
14	B_1u	744	700	62.21	0.00	0.00	0.00
15	B_2g	844	794	0.00	0.13	0.75	0.86
16	B_2g	419	394	0.00	4.30	0.75	0.86
17	B_2g	305	287	0.00	0.40	0.75	0.86
18	B_2u	3295	3099	0.00	0.00	0.75	0.86
19	B_2u	1475	1388	0.62	0.00	0.00	0.00
20	B_2u	1446	1361	0.11	0.00	0.00	0.00
21	B_2u	1122	1055	11.50	0.00	0.00	0.00
22	B_2u	344	324	5.54	0.00	0.00	0.00
23	B_3g	3284	3089	0.00	114.08	0.75	0.86
24	B_3g	1680	1580	0.00	7.52	0.75	0.86
25	B_3g	1318	1240	0.00	1.18	0.75	0.86
26	B_3g	643	605	0.00	6.70	0.75	0.86
27	B_3g	440	413	0.00	0.07	0.75	0.86
28	B_3u	805	757	100.03	0.00	0.00	0.00
29	B_3u	487	458	14.85	0.00	0.00	0.00
30	B_3u	154	145	1.94	0.00	0.00	0.00

Atom	y (Å)	z (Å)
C1	0.000	1.365
C2	0.000	-1.365
C3	1.221	0.699
C4	-1.221	0.699
C5	-1.221	-0.699
C6	1.221	-0.699
F7	0.000	2.731
F8	0.000	-2.731
H9	2.143	1.263
H10	-2.143	1.263
H11	-2.143	-1.263
H12	2.143	-1.263

	C1	C2	C3	C4	C5	C6	F7	F8	H9	H10	H11	H12
C1		2.7297	1.3906	1.3906	2.3980	2.3980	1.3666	4.0963	2.1458	2.1458	3.3914	3.3914
C2	2.7297		2.3980	2.3980	1.3906	1.3906	4.0963	1.3666	3.3914	3.3914	2.1458	2.1458
C3	1.3906	2.3980		2.4418	2.8137	1.3981	2.3709	3.6413	1.0814	3.4113	3.8948	2.1684
C4	1.3906	2.3980	2.4418		1.3981	2.8137	2.3709	3.6413	3.4113	1.0814	2.1684	3.8948
C5	2.3980	1.3906	2.8137	1.3981		2.4418	3.6413	2.3709	3.8948	2.1684	1.0814	3.4113
C6	2.3980	1.3906	1.3981	2.8137	2.4418		3.6413	2.3709	2.1684	3.8948	3.4113	1.0814
F7	1.3666	4.0963	2.3709	2.3709	3.6413	3.6413		5.4629	2.5980	2.5980	4.5335	4.5335
F8	4.0963	1.3666	3.6413	3.6413	2.3709	2.3709	5.4629		4.5335	4.5335	2.5980	2.5980
H9	2.1458	3.3914	1.0814	3.4113	3.8948	2.1684	2.5980	4.5335		4.2868	4.9760	2.5266
H10	2.1458	3.3914	3.4113	1.0814	2.1684	3.8948	2.5980	4.5335	4.2868		2.5266	4.9760
H11	3.3914	2.1458	3.8948	2.1684	1.0814	3.4113	4.5335	2.5980	4.9760	2.5266		4.2868
H12	3.3914	2.1458	2.1684	3.8948	3.4113	1.0814	4.5335	2.5980	2.5266	4.9760	4.2868

atom1	atom2	atom3	angle	atom1	atom2	atom3	angle
C1	C3	C6	118.604	C1	C3	H9	119.945
C1	C4	C5	118.604	C1	C4	H10	119.945
C2	C5	C4	118.604	C2	C5	H11	119.945
C2	C6	C3	118.604	C2	C6	H12	119.945
C3	C1	C4	122.791	C3	C1	F7	118.604
C3	C6	H12	121.451	C4	C1	F7	118.604
C4	C5	H11	121.451	C5	C2	C6	122.791
C5	C2	F8	118.604	C5	C4	H10	121.451
C6	C2	F8	118.604	C6	C3	H9	121.451

All results from a given calculation for C₆H₄F₂ (1,4-difluorobenzene)

using model chemistry: MP2/6-31+G**

States and conformations

	Computational Chemistry Comparison and Benchmark DataBase Release 22 (May 2022) Standard Reference Database 101 National Institute of Standards and Technology
	Home All data for one species Geometry Experimental Experimental Geometries Same bond/angle many molecules Internal Coordinates by type Bond angles Calculated Calculated geometry Rotational constant Moments of inertia Products of moments of inertia BSE Bond lengths Show me a calculated geometry Comparisons Bonds, angles Rotational Constants Products of moments of inertia Point group Bad Calculations Bad moment of inertia Tutorials and Explanations Angle formulas Vibrations Experimental Vibrational frequencies Calculated Frequencies Scale factors Reactions Entropies Ions List Ions Energy Calculated Ionization Energy Compare Ionzation energy Electron Affinity Calculated Electron affinity Compare Electron affinity Proton Affinity Calculated Proton affinity Compare Proton affinity Ionization changes point group Experimental One molecule all properties One property a few molecules Enthalpy of formation Entropy Integrated Heat Capacity Heat Capacity Rotational Constants Vibrational Frequencies Dipole moment Ionization Energy Polarizability Quadrupole Point Groups Geometry Experimental Geometries Internal Coordinates by type Bond angles Rotational Constants Point Groups Diatomic bond lengths Vibrations Vibrational frequencies Diatomic Triatomics Energy Atomization Energy Internal Rotation Electrostatics Dipole Quadrupole Polarizability Reference Data Reference states Spin Splittings Molecules with good enthalpy Enthalpy at 0 Kelvin Calculated Energy Optimized Energy Energy 298K Minimum conformation Hydrogen bonds H bond with counterpoise Reaction Reaction Energy 0K Reaction Energy 298K Internal Rotation Barriers to internal rotation Rotational barrier and dipole Rotational Barrier 2 molecules Orbital HOMO LUMO gap HOMO Orbital Energies Nuclear repulsion energy Correlation Full vs Frozen core energies Partial correlation energies Ion Calculated Ionization Energy Vertical ionization Energy Calculated Electron affinity Calculated Proton affinity Atom charge differences Excited State Singlet triplet gap Electronic state Transition state Basis Set Extrapolation BSE energy BSE Bond lengths Geometry Calculated geometry AIM bond orders One type of bond Rotation Rotational constant Products of moments of inertia Moments of inertia Inertial defects Second moments Point group State symmetry <r2> Sorted by r2 Z-matrix Bad Calculations Bad moment of inertia Bad Calculated Bond Lengths Bad point group Worst molecules Vibrations Frequencies Animated vibrations Anharmonic Zero point energy (ZPE) Scale Factors Scale factors Scale factor uncertainty Calculate a scale factor Why scale vibrations Set scaling factors Bad Calculations Bad Vib. HF vs MP2 Bad vib. Calc. vs exp. Big anharmonicity Electrostatics Charges Mulliken CHELP Aim ESP Dipole Dipole Dipole angle Dipole calculation types Quadrupole Polarizability Spin Spin density Entropy and Heat Capacity Entropy Reaction entropy Heat Capacity Reaction Reaction Energy 0K Reaction Energy 298K Isodesmic reactions Transition State Transition state Transition state frequencies Transition state geometries IRC Lookup by property By frequency Comparisons Geometry Bonds, angles Bond, angle, or dihedral DFT grid size on point group DFT grid on bond length Core correlation - bond length Same bond/angle many molecules Isoelectronic diatomics Isoelectronic triatomic angles Average bond lengths Rotation Rotational Constants Products of moments of inertia Point group Vibrations Vibrations 2 calculations Frequency differences One frequency Zero point energy Intensity Intensity for one mode Vibrational intensities Reduced mass comparison Anharmonic Triatomic Scale factors Energy Reaction Reaction Energy 0K Reaction Energy 298K Atomization 0K Atomization 298K Single point vs optimized DFT grid size on energy Semiempirical enthalpy Internal rotation Similar molecules Conformation Sets of isomers Sets of tautomers Isomers Entropy Entropy Heat capacity Entropy of several molecules Integrated heat capacity Reaction entropy Electrostatics Dipole Polarizability Several molecules Quadrupole Ion Compare Ionzation energy Koopman ionization energy Koopman IE for a few molecules Compare Electron affinity Compare Proton affinity Protonation Site Resources Info on Results Calculations Done Method and basis set List molecules One molecule Multiple conformers, states Multiple conformers, states Basis functions used I/O files Input/output files MOL file Z-matrix wfn files Glossary Conversion Forms B to I, I to B Angle formulas Integrated heat Capacity Calculating Enthalpy Links NIST Links NIST webbook bibliographic data CCCBDB Experimental data External links Basis Set Exchange Computational Chemistry List Thermochemistry in Gaussian Minnesota Database Collection Benchmark Energy and Geometry Point Groups Thermochemistry Thermochemistry Molecules with good enthalpy A → B + C Reference states Tutorials Vibrations Why scale vibrations Zero-point energies Entropy Methyl rotor entropy Entropy and conformations Energy Getting enthalpy of formation Vertical vs adiabatic IE Thermo from calculations Electrostatics Dipole parts by point group Quadrupoles Geometry Angle formulas Cost Cost Comparison Timings Comparison Bad Calculations Geometry Bad moment of inertia Bad Calculated Bond Lengths Bad point group Worst molecules Vibrations Bad vib. Calc. vs exp. Bad Vib. HF vs MP2 Bad scale factors Low excited states Oddities NaCN Is not linear FAQ Help Units Choose Units Energy Bond length Rotational Constant Moment of Inertia Dipole and Quadrupole Polarizability Explanations Hartree cm-1 Debye Credits Just show me Show me a calculated geometry Summary Using older interface Limit Basis sets Method options List Recent molecules Choose a few Molecules Number of atoms By heavy atoms Diatomics InChI Deuterated Dimers Geometry Point group Point group count Bonds types Isodesmic reactions Bad point group Multiple conformers, states Vibrations Big anharmonicity Energy Enthalpy at 0 Kelvin Similar molecules Similar Isomers Cis/trans Tautomers Multiple conformers, states Ions, Dipoles, etc. List Ions Ionization changes point group Dipole Quadrupole Polarizability Proton Affinities Index of CCCBDB Feedback Error form Wants
You are here: Calculated > Energy > Optimized > Energy

All results from a given calculation for C6H4F2 (1,4-difluorobenzene)

using model chemistry: MP2/6-31+G**

States and conformations

All results from a given calculation for C₆H₄F₂ (1,4-difluorobenzene)